Visual Micro has done some great work helping to integrate Arduino development into the Visual Studio IDE with a really cool addin. I must say that I absolutely love this kind of tool that brings an esoteric and quirky programming system to a mainstream audience.
There is one little problem with the addin inasmuch as it was built for a thirty two bit OS. I have Windows 7 64 bit installed so my directory layout is a bit different. I modified the addin such that it loads the DLL from the standard install directory on my 64 bit system.
The updated addin code can be downloaded from my site. I will of course send it to Visual Micro too who can keep up that fantastic work!!!